7 results about "High-speed grinding" patented technology

This utility model relates to the field of machining equipment technology, specifically to a bar stock rough grinding device, comprising a base 1, a base 2, an electric slide 1, an electric slide 2, a grinding wheel spindle, a grinding wheel, and a clamping assembly. Base 1 is located on the left side of base 2. Electric slide 1 and electric slide 2 are respectively mounted on base 1. The grinding wheel spindle is mounted on electric slide 2. The grinding wheel drive assembly is located behind the grinding wheel spindle and is connected to the grinding wheel spindle via a transmission mechanism. The output shaft of the grinding wheel spindle is connected to the grinding wheel. The clamping assembly for holding the bar stock is fixedly mounted on base 2. Through the cooperation of a synchronous follower bracket and sliding frame, etc., it provides stable support for the bar stock combining dynamic and static elements, significantly improving the stability of the bar stock during high-speed grinding. It solves the problem of workpiece displacement caused by vibration or impact in traditional equipment, ensuring machining accuracy and surface quality.

This invention relates to an intelligent control device and method for temperature rise of guideways in CNC gantry grinding machines. The device comprises several thermally symmetrical and parallel V-shaped and planar guideways A on the machine bed. Each V-shaped and planar guideway A section is equipped with an independent PLC intelligent temperature control system and structural device. This invention solves the technical problems of guideway deformation and distortion caused by sliding friction and heat expansion, as well as the related technological challenges. It enables real-time and accurate detection and intelligent control of the temperature rise of each guideway within the grinding stroke, avoiding the problem of thermal deformation and distortion caused by differences in frictional force due to the different structural forms of the V-shaped and planar guideways. This improves the linear and planar accuracy and stability of the worktable movement, and also solves the prominent technical problems of straightness, flatness deviations, and grinding marks caused by long-term continuous high-efficiency grinding. This effectively improves the accuracy and efficiency of CNC gantry grinding machines in long-term continuous high-speed grinding of large key parts guideways.

The application discloses a grinding wheel for preventing end face cracks of a workpiece in a high-speed grinding process and a preparation method thereof, and belongs to the field of grinding wheel manufacturing and grinding processing. The two end faces of the grinding wheel are provided with randomly distributed micro holes (200-500 microns) through laser marking, a high number of binders (23-28%) is used in the formula of the grinding wheel, and a method for forming micron-sized small holes (5-10 microns) in the binders is used to increase the convective heat transfer of the cooling medium, so that the cooling medium carries away more heat, thereby preventing end face grinding cracks. In the method, the high binder mass ratio increases the wrapping holding force of the binder on the CBN abrasive, reduces the falling of the abrasive and improves the durability of the grinding wheel. The micro holes adsorb moisture through capillary action during grinding, the millimeter holes can form a cooling water flow channel, the combination of laser marking and micron-sized small holes in the binder has good cooling effect, does not weaken the grinding performance of the grinding wheel itself, thereby reducing the dressing frequency of the grinding wheel and prolonging the service life of the grinding wheel.

This invention provides a composite vibration-damping electric spindle for high aspect ratio internal grinding, relating to the field of precision machining equipment technology. It includes a spindle housing, a drive shaft, and a passive composite vibration damping system. The passive composite vibration damping system includes multiple sets of non-contact eddy current damping components, multiple sets of built-in particle damping components, and a cooling component. The built-in particle damping components include damping particle baffles, with a sealed damping cavity arranged axially along the drive shaft between the outer wall of the damping particle baffles and the inner wall of the spindle housing. The damping cavity is filled with several damping particles. The non-contact eddy current damping components include permanent magnets fixedly disposed on the inner walls of both ends of the damping particle baffles and conductive rings sleeved on the outer wall of the drive shaft and radially opposite to the permanent magnets. A radial air gap is left between the permanent magnets and the conductive rings. This invention, through the integration of non-contact electromagnetic damping and built-in particle damping, effectively suppresses regenerative chatter of the spindle during high-speed grinding, improving machining accuracy.

This invention discloses an ultrasonic vibration electrolytic grinding composite spindle component in the field of grinding composite spindle technology, comprising an insulating shell; a hollow spindle rotor; an ultrasonic vibration mechanism connected to the hollow spindle rotor and used to generate and transmit axial ultrasonic vibration; a rotary drive device for driving the hollow spindle rotor and the ultrasonic vibration mechanism to rotate together; and an electrolysis mechanism including a conductive slip ring and an electrolyte delivery assembly, the electrolyte delivery assembly being used to deliver electrolyte to the grinding area at the front end of the hollow spindle rotor; wherein, the first electrical channel of the conductive slip ring is electrically connected to the ultrasonic vibration mechanism for transmitting high-frequency electrical signals; the second electrical channel of the conductive slip ring is electrically connected to the tool mounting end of the hollow spindle rotor for transmitting direct current for electrolytic machining. This composite spindle component, by integrating ultrasonic vibration, electrolytic machining, and high-speed grinding processes, overcomes the fundamental technical bottlenecks of low material removal rate, severe thermal damage, and rapid tool wear in traditional single ultrasonic grinding.

This invention relates to an automatic temperature control device and method for the guideways of a precision and high-efficiency CNC cylindrical grinding machine. It includes a bed, a worktable, and multiple intelligent temperature control modules for the guideways. The bed and V-shaped guideway body adopt a separate structure. The V-shaped guideway body is composed of several segments, and the guide positioning groove precisely matches the positioning block inside the V-shaped guideway body. The V-shaped guideway body has an independent PLC intelligent temperature control structure, which accurately monitors the temperature rise of the working surface in conjunction with the V-shaped guideway in real time. This solves the key technical problem of deformation, elongation, and twisting along the length direction caused by the sliding friction and thermal expansion of the V-shaped guideway body, meeting process requirements and achieving real-time, accurate, automatic acquisition and intelligent control of the V-shaped guideway temperature rise during high-speed grinding. Furthermore, it overcomes the technical challenges of controlling straightness, radial runout, and grinding marks in the long-term continuous precision grinding and high-efficiency machining of shaft parts using precision and high-efficiency CNC cylindrical grinding machines, meeting the stringent requirements of high-precision grinding and high-efficiency machining of high-quality shaft parts.

This invention discloses an intelligent medicine dispenser and its adaptive resistance feedback and safe interactive control method, belonging to the field of medical auxiliary equipment technology. The dispenser features a split, closed structure, innovatively employing a sandwich clamping structure of "flat V-shaped silicone groove + Teflon compression block," combined with high-speed grinding using toothless diamond slices, completely solving the problems of easy breakage when cutting hard-coated tablets and easy flipping of small tablets. Simultaneously, the bottom of the device is equipped with a dust-collecting slit and a turbine negative pressure air curtain to instantly vent cutting dust and prevent cross-contamination. More importantly, this invention pioneers a closed-loop cutting algorithm based on dual-axis current feedback (hardness retraction and dynamic torque adjustment), achieving adaptive adjustment of cutting force; and breaks with traditional logic, proposing a safe human-machine interactive control method of "stopping and locking after cutting, and retracting the blade only after opening the cap." This invention greatly improves the accuracy of medicine dispensing, hygiene, and ultimate safety for home use.